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+{
+ "metadata": {
+  "name": "",
+  "signature": "sha256:c47c99279bcc1ed930609c37047619e07a7ba5a5f3802de8eeb54d6cf31ebdd4"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Chapter 2: Variables and Expressions"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example integer.c, page no. 35"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "val = 10\n",
+      "print \"%d\" %val"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "10\n"
+       ]
+      }
+     ],
+     "prompt_number": 1
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example float.c, page no. 36"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "i_var = 10\n",
+      "f_var = 100.3125\n",
+      "print \"i_var is %d and f_var is %f\" %(i_var, f_var)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "i_var is 10 and f_var is 100.312500\n"
+       ]
+      }
+     ],
+     "prompt_number": 3
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example decimal.c, page no. 37"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "inp_int = int(raw_input())\n",
+      "print \"The input integer (in decimal) is %u\" %inp_int\n",
+      "print \"The input integer (in hexadecimal) is %x\" %inp_int"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "45\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The input integer (in decimal) is 45\n",
+        "The input integer (in hexadecimal) is 2d\n"
+       ]
+      }
+     ],
+     "prompt_number": 1
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example scanf.c, page no. 37"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "years = float(raw_input(\"Input your age in years: \"))\n",
+      "secs = years*365*24*60*60\n",
+      "print \"You have lived for %0.1f seconds\" %secs"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Input your age in years: 21\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "You have lived for 662256000.0 seconds\n"
+       ]
+      }
+     ],
+     "prompt_number": 10
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example char.c, page no. 38"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "c = '#'\n",
+      "print \"This is the hash symbol: %s\" %c"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "This is the hash symbol: #\n"
+       ]
+      }
+     ],
+     "prompt_number": 12
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example ascii.c, page no. 39 "
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "code = int(raw_input(\"Input an ASCII code (0 to 127):\" ))\n",
+      "symbol = chr(code)\n",
+      "print \"The symbol corresponding to %d is %s\" %(code,symbol)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Input an ASCII code (0 to 127):75\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The symbol corresponding to 75 is K\n"
+       ]
+      }
+     ],
+     "prompt_number": 14
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example string.c, page no. 40"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "my_string = \"13 is unlucky.\"\n",
+      "print \"my_string: %s\" %my_string"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "my_string: 13 is unlucky.\n"
+       ]
+      }
+     ],
+     "prompt_number": 1
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example size.c ,page no. 41"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "import sys\n",
+      "print \"Size of a int is %d\" %sys.getsizeof(int)\n",
+      "print \"Size of a long int is %d\" %sys.getsizeof(long)\n",
+      "\n",
+      "#Note: there is no short interger data type in Python\n",
+      "#Answers will differ"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Size of a int is 872\n",
+        "Size of a long int is 872\n"
+       ]
+      }
+     ],
+     "prompt_number": 27
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example inout.c, page no. 42"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "shorti = int(raw_input(\"Input short int: \"))\n",
+      "longi = int(raw_input(\"Input long int: \"))\n",
+      "print \"shorti = %d and longi = %d\" %(shorti, longi)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Input short int: 12\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Input long int: 200000000\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "shorti = 12 and longi = 200000000\n"
+       ]
+      }
+     ],
+     "prompt_number": 3
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example beep.c, page no. 47"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "print \"%c\" %('\\x07')\n",
+      "\n",
+      "#note: there won't be any beep in Python"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "\u0007\n"
+       ]
+      }
+     ],
+     "prompt_number": 4
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example tax.c, page no. 49"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "sal = float(raw_input(\"Salary: \"))\n",
+      "tax = sal * 0.3\n",
+      "print \"tax = %.1f\" %tax"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Salary: 200000\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "tax = 60000.0\n"
+       ]
+      }
+     ],
+     "prompt_number": 7
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example tax1.c, page no. 49"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "tax_rate = 0.3\n",
+      "sal = float(raw_input(\"Salary: \"))\n",
+      "tax = sal * tax_rate\n",
+      "print \"tax = %.1f\" %tax"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Salary: 200000\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "tax = 60000.0\n"
+       ]
+      }
+     ],
+     "prompt_number": 8
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example const.c, page no. 50"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "tax_rate = 0.3\n",
+      "sal = float(raw_input(\"Salary: \"))\n",
+      "tax = sal * tax_rate\n",
+      "print \"tax = %.1f\" %tax\n",
+      "\n",
+      "#Note: there is no constant data type in Python so the program will remain same as above"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Salary: 200000\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "tax = 60000.0\n"
+       ]
+      }
+     ],
+     "prompt_number": 9
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example const.c, page no. 50"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "tax_rate = 0.3\n",
+      "sal = float(raw_input(\"Salary: \"))\n",
+      "tax = sal * tax_rate\n",
+      "print \"tax = %.1f\" %tax\n",
+      "\n",
+      "#Note: there is no #define preprocessor in Python so the program will remain same as above"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Salary: 200000\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "tax = 60000.0\n"
+       ]
+      }
+     ],
+     "prompt_number": 10
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example relation.c, page no. 53"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "print \"Input two numbers\"\n",
+      "i = int(raw_input(\"num1: \"))\n",
+      "j = int(raw_input(\"num2: \"))\n",
+      "if (i == j):\n",
+      "    print \"They are equal.\"\n",
+      "print \"Got the message?\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Input two numbers\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "num1: 34\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "num2: 34\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "They are equal.\n",
+        "Got the message?\n"
+       ]
+      }
+     ],
+     "prompt_number": 11
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example char.c, page no. 54"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "c = 255\n",
+      "d = -1\n",
+      "if c < 0:\n",
+      "    print \"c is less than 0\"\n",
+      "else:\n",
+      "    print \"c is not less than 0\"\n",
+      "if d < 0:\n",
+      "    print \"d is less than 0\"\n",
+      "else:\n",
+      "    print \"d is not less than 0\"\n",
+      "    \n",
+      "#the program will not have output as that given in the textbook\n",
+      "#because, there is no concept of char, signed or unsigned values in Python\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "c is not less than 0\n",
+        "d is less than 0\n"
+       ]
+      }
+     ],
+     "prompt_number": 22
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example char8.c, page no. 55"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "c = '255'\n",
+      "d = '-1'\n",
+      "if c < 0:\n",
+      "    print \"c is less than 0\"\n",
+      "else:\n",
+      "    print \"c is not less than 0\"\n",
+      "if d < 0:\n",
+      "    print \"d is less than 0\"\n",
+      "else:\n",
+      "    print \"d is not less than 0\"\n",
+      "\n",
+      "#the program will not have output as that given in the textbook\n",
+      "#because, there is no concept of char, signed or unsigned values in Python"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "c is not less than 0\n",
+        "d is not less than 0\n"
+       ]
+      }
+     ],
+     "prompt_number": 23
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example extract.c, page no. 59"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "i = int(raw_input(\"Input an integer: \"))\n",
+      "n = int(raw_input(\"Bit position to extract: \"))\n",
+      "bit = (i >> n)&1\n",
+      "print \"The bit is: %d\" %bit"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Input an integer: 10\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Bit position to extract: 1\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The bit is: 1\n"
+       ]
+      }
+     ],
+     "prompt_number": 29
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example max.c, page no. 62"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "print \"Input two numbers\"\n",
+      "i = int(raw_input(\"num1: \"))\n",
+      "j = int(raw_input(\"num2: \"))\n",
+      "larger = i if i > j else j\n",
+      "print \"The larger of the two is %d\" %larger"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Input two numbers\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "num1: 34\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "num2: 45\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The larger of the two is 45\n"
+       ]
+      }
+     ],
+     "prompt_number": 33
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example interest.c, page no. 65"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "p = float(raw_input(\"Principal: \"))\n",
+      "r = float(raw_input(\"Rate: \"))\n",
+      "t = float(raw_input(\"Time: \"))\n",
+      "ncmp_year = float(raw_input(\"Compoundings per year: \"))\n",
+      "simple = p * r * t / 100\n",
+      "cmp_amount = p * pow(1 + r / (ncmp_year * 100), ncmp_year * t)\n",
+      "compound = cmp_amount - p\n",
+      "print \"The simple interest is : %f\" %simple\n",
+      "print \"The compound interest is : %f\" %compound"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Principal: 1000\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Rate: 10\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Time: 2\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Compoundings per year: 4\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "The simple interest is : 200.000000\n",
+        "The compound interest is : 218.402898\n"
+       ]
+      }
+     ],
+     "prompt_number": 35
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 2.10, page no. 66"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "c = float(raw_input(\"Enter temperature in celsius: \"))\n",
+      "f = 1.8 * c + 32\n",
+      "print \"Equivalent fahrenheit = %f\" %f\n",
+      "f = float(raw_input(\"Enter temperature in fahrenheit: \"))\n",
+      "c = (f - 32) / 1.8\n",
+      "print \"Equivalent celsius = %f\" %c\n"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter temperature in celsius: 10\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Equivalent fahrenheit = 50.000000\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter temperature in fahrenheit: 50\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Equivalent celsius = 10.000000\n"
+       ]
+      }
+     ],
+     "prompt_number": 36
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 2.11, page no. 66"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "import math\n",
+      "print \"Enter the 3 sides: \"\n",
+      "a = float(raw_input(\"side1:\"))\n",
+      "b = float(raw_input(\"side2:\"))\n",
+      "c = float(raw_input(\"side3:\"))\n",
+      "peri = a + b + c\n",
+      "s = peri / 2\n",
+      "area = math.sqrt(s * (s - a) * (s - b) * (s - c))\n",
+      "print \"Area of the triangle is %f\" %area"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter the 3 sides: \n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "side1:4\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "side2:5\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "side3:6\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Area of the triangle is 9.921567\n"
+       ]
+      }
+     ],
+     "prompt_number": 39
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Example 2.12, page no. 67"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "b = float(raw_input(\"Enter the base: \"))\n",
+      "h = float(raw_input(\"Enter the height: \"))\n",
+      "area = b * h / 2\n",
+      "print \"Area of the triangle is %f\" %area"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter the base: 3\n"
+       ]
+      },
+      {
+       "name": "stdout",
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Enter the height: 2\n"
+       ]
+      },
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Area of the triangle is 3.000000\n"
+       ]
+      }
+     ],
+     "prompt_number": 40
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
\ No newline at end of file